Sunglasses with MP3 players - isn't that cool?

It seems like a cool idea - sunglasses with a built-in digital music player and speakers.

And if Thump, Oakley's new breed of eyewear, retailed for about $100, it might be an alternative to the rudimentary flash memory card music players on the market.
But these supershades cost $395 for a pair with 128 megabytes of memory and $495 for the 256-megabyte version.